S.E. International Inspector Xtreme USB Spécifications télécharger pdf (Page 11)

Chapter 4: Common Procedures

Seng the Internal Clock

To set the internal clock, enter into the ulity menu, select CLOC, and press set.

1) First, the seconds are displayed. Use the + and - buons to select the seconds for the clock and press SET to

select your choice.

2) Second, the me will be displayed. First select the minutes and press SET. You will then select the hour and

press SET again.

3) Third, the date will be displayed. First set the day and press SET. Then select the month and press SET.

4) Lastly, the year will be displayed. Select the appropriate year and press SET.

You will now see donE displayed in the Ulity Menu. You can now select another item in the Ulity Menu or

press SET to enter into the normal funcon of the Digilert200.

Interfacing to an External Device

The USB jack (Figure 2(10)) on the le side of the Inspector provides a data output for use with the Observer

Soware. You can use it to record the counts on a computer, download the recorded data, and calibrate the

instrument.

Visit seintl.com for more informaon on Observer Soware.

The following secons give instrucons for several commonly-used procedures. With any procedure, the user

must determine the suitability of the instrument or procedure for that applicaon.

Establishing the Background Count

Normal background radiaon levels vary at dierent locaons, me, even in dierent areas of the same room.

To accurately interpret the readings you get on the Inspector, it is good to establish the normal background

radiaon count rate for each area you plan to monitor. You can do this by taking a med count. For more infor-

maon on using the mer, see “Taking a Timed Count” in Chapter 3.

A 10-minute average is moderately accurate. You can repeat it several mes and see how close the averages

are. To establish a more accurate average, take a 1 hour med count. If you need to determine whether there

is prior contaminaon, take averages in several locaons, and compare the averages.

Environmental Area Monitoring

You can keep the Inspector in CPM or mR/hr mode whenever you want to monitor the ambient radiaon, and

look at it from me to me to check for elevated readings.

If you suspect an increase in ambient radiaon, use the mer and take a 5 or 10 minute count, and compare

the average to your average background count. If you suspect an increase that is too small to detect with a

short med reading, you can take a longer count (for example 6, 12, or 24 hours).

Checking for Surface Contaminaon

To check a surface, hold the detector window close to the surface, and read the count rate (wait 30 seconds or

unl the reading has stabilized). If you want to nd out if a surface is slightly radioacve, take a med count or

a longer accumulated count.

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S.E. International Inspector Xtreme USB Spécifications Page 11